random question about pcv valve

[40th GT]

I keep hearing these things about pcv valves..Can anyone tell me what it is? It seems like some people change it on a regular basis.

 

[03poontanggt]

It stands for positive crankcase ventilation. It plugs into your valve covers. It is there to remove moisture which would cause sludge to form. And it extends the life of the oil and engine. It should be replaced somewhere around 30,000 to 50,000 miles. Hope that helps a little

 

[inferno9898]

pulling this up from a few weeks ago but.....

which valve cover is the pcv valve on? theres a tube going into the passengers side directly under the air inlet tube and a larger one on the drivers side.

 

[billyfe390]

Its on the passenger side valve cover. Also it takes the compression that blows by the rings and runs it back through the motor so the inside of the block doesnt build pressure.

 

[inferno9898]

what is the tube going into the drivers side valve cover then? looks similar but is larger. it runs straight into the air inlet tube i believe